There are lots, its a build in feature so you just press search and then you search, and it shows a long list

I dont know how to fix that issue, but ones you get that figured out, i can recomend you setup search engines in qbit, as that is one of the best features, becouse then you dont have to go on 5 websites to find the movie you are looking for

Thats cool

Maybe for people who only want to host lemmy and nothing else

Well, cloudflare is (supposedly) more secure, but other then that, not really, everything in nabu casa can be achieved without it, but nabu casa is easier and supports home assistant

Yes it is